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4. Stock-Based Compensation (Details - Schedule of Summary of Outstanding Stock Options) - shares
3 Months Ended
Sep. 23, 2018
Sep. 24, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Outstanding shares at beginning of year 478,056 478,056
Granted
Exercised
Forfeited/Canceled/Expired shares (100,000)
Outstanding shares at end of year 378,056 478,056
Exerciseable at end of year 378,056 478,056